It's almost like maybe the port comes up delayed from a reboot and you poll it before its up.

Is there a log file i can capture for you?

It might be helpful, if you could enable detailed logging on the plugin config page, and then copy and paste the hs startup log into a post here. I'm curious if the plugin is generating an insteon error report.log file if there is an exception during startup.

In general the plugin starts when hs initializes it. I guess the assumption is that hs and the underlying hardware are ready when a plugin starts.

It might be helpful, if you could enable detailed logging on the plugin config page, and then copy and paste the hs startup log into a post here. I'm curious if the plugin is generating an insteon error report.log file if there is an exception during startup.

In general the plugin starts when hs initializes it. I guess the assumption is that hs and the underlying hardware are ready when a plugin starts.

I restarted the machine and after it booted completely, I had to restart the plug-in to get it started. I noted the place in the log that I restarted it.

This is with using the 2413S on COM1 on a rs232 port. There are no converters, etc....